Black Mountain prospect, Humphreys Station, Big Dry Creek Mining District, Fresno County, California, USAi
| Regional Level Types | |
|---|---|
| Black Mountain prospect | Prospect |
| Humphreys Station | - not defined - |
| Big Dry Creek Mining District | Mining District |
| Fresno County | County |
| California | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
36° 55' 46'' North , 119° 25' 9'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Auberry | 2,369 (2011) | 17.8km |
| Shaver Lake | 634 (2011) | 21.4km |
| Centerville | 392 (2011) | 22.8km |
| Minkler | 1,003 (2011) | 23.1km |
| Squaw Valley | 3,162 (2011) | 26.0km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Fresno Gem & Mineral Society | Fresno, California | 37km |
A Cu-Au occurrence/prospect located in sec. 36, T11S, R23E, MDM, 4.3 km (2.7 miles) SSE of Humphreys Station in the headwaters area of Sales Creek (½ mile NE of the Copper King). MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein deposit with the vein averaging 3 feet (0.91 meter) thick, hosted in limestone. The vein splits and has decidedly branching tendencies. The E wall is a gray diabase associated Taio schist. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains).
Workings include surface and underground openings with a length of 121.92 meters, and comprised of a 30 foot deep shaft, a 60 foot tunnel, which runs NE, another tunnel 20 feet below the first at 180 feet long. A third tunnel had been started in 1908. Some open cvuts and shallow holes were on the surface.
Analytical data results: 15-19% Cu and $5/ton of Au (period values).
List of minerals for each chemical element
Other Databases
| Link to USGS MRDS: | 10034286 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Foothills-Wallowa DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- Sierra NevadaMountain Range
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060190158
(1908, September) The Copper Resources of California. Bulletin 50. California State Mining Bureaup.287
